CVE-2007-1485: Buffer overflow in the set_umask function in QFTP in LIBFtp 3.1-1 allows local users to execute arbitrary code

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HIGH 10.0DOWNGRADE

CVE-2007-1485 is a high-severity flaw (CVSS 10.0) affecting ftplib. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the set_umask function in QFTP in LIBFtp 3.1-1 allows local users to execute arbitrary code via a long -m argument. NOTE: CVE disputes this issue because QFTP is not setuid, and it is unlikely that there are web interfaces to QFTP that would accept untrusted command line arguments

Why this priority

Critical severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	2.8% (top 14%)
CISA exploited list	No
Published	2007-03-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ftplib

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-03-16 21:19 UTCPublished CVE record published
2026-06-16 22:37 UTCUpdated Record last modified

ftplib ftplib DOWNGRADE

Affected: 3.1-1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1-1

1. Check installed version

apt-cache policy ftplib || rpm -q ftplib || ftplib --version

2. No fixed release: DOWNGRADE to a release before 3.1-1 (Debian / Ubuntu)

apt-cache madison ftplib sudo apt install ftplib=<VERSION_BEFORE_3.1-1> sudo apt-mark hold ftplib

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ftplib sudo dnf downgrade ftplib-<VERSION_BEFORE_3.1-1> sudo dnf versionlock add ftplib

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2007-1485?

ftplib: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-1485 being exploited?

CVE-2007-1485 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2007-1485 affect?

CVE-2007-1485 affects ftplib. Severity is high (CVSS 10.0). Buffer overflow in the set_umask function in QFTP in LIBFtp 3.1-1 allows local users to execute arbitrary code via a long -m argument. NOTE: CVE disputes this issue because QFTP is not setuid, and it is unlikely that there are web interface

How urgent is CVE-2007-1485?

Priority 57/100. Critical severity

References

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